i have/had a 65" Samsung 3D TV. Cost me about $1800 6 months ago. We had a massive lightning storm here in Perth a few weeks ago, and the TV was one of the appliances that paid the price. Insurance have me a new TV (upgraded model to UHD - cool!)
Is it worth anything? Is it cost effective to get it repaired, if it can be repaired? I know nothing about what the lightning actually does, fried circuit board??
Almost certainly no.
Best case is the power supply was killed, but there is a good chance it also fried the rest of the electronics.
Unfortunately, you can't easily tell.
You might try a TV repair guy, they could fix the power supply, and probably tell if other components are dead, but if any of the integrated circuits are damaged it is not worth repairing.
I suppose it wouldn't hurt to give one a call and see if they think it is worth taking a look.